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https://issues.apache.org/jira/browse/HADOOP-799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nigel Daley resolved HADOOP-799.
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Resolution: Duplicate
Duplicate of HADOOP-973
> NullPointerException in FSDataset
> ---------------------------------
>
> Key: HADOOP-799
> URL: https://issues.apache.org/jira/browse/HADOOP-799
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.9.1
> Reporter: Nigel Daley
> Assigned To: Sameer Paranjpye
>
> Running the smallJobsBenchmark this morning, I got this NPE in one of the
> datanode logs:
> 2006-12-07 10:58:09,541 INFO org.apache.hadoop.dfs.DataNode: Deleting block
> blk_-4859335730964457601
> 2006-12-07 10:58:21,548 ERROR org.apache.hadoop.dfs.DataNode: Exception:
> java.lang.NullPointerException
> at org.apache.hadoop.dfs.FSDataset.invalidate(FSDataset.java:519)
> at org.apache.hadoop.dfs.DataNode.offerService(DataNode.java:386)
> at org.apache.hadoop.dfs.DataNode.run(DataNode.java:1007)
> at java.lang.Thread.run(Thread.java:595)
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